Inseam-trimmer.



nllllllillllll B. KBIGHLEY.

INSEAM TRIMMER.

APPLICATION FILED FEB. 7, 1911.

Patented July 2, 1912.

.Mam Ts coLuMmA P'LANOGRAIH CO.. WASHINGTON. nA c.

WILLIAM BOTTOIVILEY KEIGHLEY, 0F VINELANID, NEW JERSEY.

INSEAM-TRIIVIMER.

Specification of Letters latent.

Application filed February 7, 191.1.

Patented July 2,1912.

Serial No. 607,018.

To all whom. t may concern Be it known that I, lWILLIAM B. Knien- LEY, a citizen of the United States, and a resident of Vineland, Cumberland county, New Jersey, have invented certain Improvements in Inseam-Trimmers, of which the following is a specification.

One object of my invention is to provide a machine particularly designed for trimming surplus material from the inseams of shoes during their manufacture, which shall include means for removing all such material as it is severed or cut off and preferably of such design as to materially assist in feeding the work through the machine.

I further desire to provide an inseam trimmer with a novel form of saddle structure for supporting the work while it is being operated on; said saddle, as well as the means heretofore referred to for removing the chips and pieces of material, being designed to efficient-ly eoperate with the band knife which does the cutting to rapidly operate on the shoes passed through the machine.

I also desire to provide novel means for carrying and actuating the work supporting saddle under operating conditions; the in'- vention being also intended to providefa novel struct-ure for regulating the depth of cut of the knife and for facilitating the passage of work over the saddle.

Another object of the invention is to provide an inseam trimmer having the general characteristics above noted, with novel means for supplying lubricant to the various friction reducing disks or rollers and with a novel structure for supporting the saddle, guards, waste removing brush, etc., whereby these may be conveniently and accurately adjusted to compensate for wear of the knife or cutter.

These objects and other advantageous ends I secure as hereinafterset forth, reference being had to the accompanying drawings, in which Figure 1 is a side elevation illustrating one form of my invention; Fig. 2, is a front elevation of the machine shown in Fig. 1; Figs. 3, 4, and 5 are front elevations of the saddle, showing it with various arrangements of anti-friction work-supporting disks; Fig. 6, is a side elevation of a modified form of saddle, showing the adjustable pin for regulating the approach of a shoe to the cutter, and Fig. 7, is a front elevation of the structure shown in Fig. 6.

In the above drawings, 1 represents the work supporting post or standard of an inseam trimming machine which includes an endless band knife or cutter whose operative run is shown at 2. To the upper part of the post is adjustably fixed a casting 3 forming a bearing block and held in place by a bolt 4 which may be loosened to permit of a small movement of said casting 3 with its attached parts such as might be necessary to maintain certain of said parts in the proper positions relatively to the knife 2 as this wears from use and repeated sharpening. rlhe block 3 provides a bearing for a horizontally extending shaft 5, to one end of which is fixed a pulley 6 driven through a belt 7 from any suitable source of power. There is also fixed to said shaft adjacent this pulley a second and smaller pulley S for a purpose hereafter noted. The shaft is held from longitudinal movement in its bearing by a screw 9 which enters a suitable annular recess or groove 10 in said shaft. The pulley 6 is provided with a hollow outwardly projecting boss 11 '3 threaded for the reception of a cap or cover 12 and forming with this latter a grease cup in communication with an axial passage in the shaft 5 preferably extending from end to end thereof. As is obvious, the screwing up of the cap or cover 12 on the boss 11, forces lubricant from the interior thereof through the shaft 5. The latter may be supplied with lubricant independl ently of this source through oil holes 13 and 14 extending through the block 3 into the shaft bearing; these passages being normally closed by plugs as shown.

The end portion 15 of the shaft 5 adjacent the band knife 2 is eccentric to the body thereof and carries a work supporting saddle 16 whose top surface is preferably somewhat concaved and brought to an edge adjacent that facewhich is in the immediate vicinity of the band knife. The work supporting post 1 is extended to a point immediately under this saddle and has a plurality of recesses in which are mounted springs17 of such length as to engage and serve to properly support said saddle under operating conditions. In order to facilitate thepassage of work lover the latter, it mayk be provided with a yseries of anti-friction disks arranged in Aany suitable manner, as for example, in the const-ruction shown in Figs. 1 and 2, I have employed two such disks, indicated at 18 and 19, of which the first is mounted on a short, hollow spindle 2O arranged to receive lubricant from the hollow interior of the shaft 5 as shown and having an outlet from its bore so as to supply lubricant to said disk 18. This disk and spindle are so arranged that the former lies in a plane outside of the plane of the run 2 of the band knife and extends beyond the cutting edge thereof, while the disk 19 is mounted on a hollow spindle 21 in such manner that it lies inside of the plane of said knife but immediately adjacent thereto. The second spindle, as clearly sho-wn in Fig. 1, is likewise connected to the hollow interior of the shaft 5 so as to be capable of delivering lubricant to the disk 19 which is rotatably mounted upon it.

Extending upwardly from the block 3 and in the present instance forming part thereof, are two brackets 22 and 23, together forming a bearing for a vertically extending shaft 24. This has fixed to its upper end a pulley 25 and carries at its lower end a brush 26 having a main cylindrical portion and preferably formed with its lower end convex; t-he arrangement being such that said end of the brush liesabove and immediately adjacent to the top surface of the saddle, while its cylindrical portion revolves immediately adjacent the knife 2. I preferably so design this brush that its lower surface approximately conforms to the concave surface of the saddle. Also supported by the bracket 22 is a pair of idler pulleys 27, and a driving belt 28 passing over these idlers serves to connect the pulley 8 with the pulley 25 in order to transmit power from the shaft 5 to the brush 26. Immediately above the brush and mounted on the bearing structure 24 is an elongated guard plate 29 extending in front of the knife 2 and across its cutting edge, there being provided a screw 30 whereby said plate may be adjustably held in position. To permit of this adjustment, the plate 29 is preferably slotted as shown in Fig. 1, both on its front and rear faces; it being understood that it is of a generally troughshaped form or U-shaped section.

Extending rearwardly from the bearing structure 24 is an arm 31 having a stitch edge guard 33 pivotally connected to it by means of a screw 32. This guard consists of a main plate structure to which is adjustably connected a vertically movable plate 34 extending parallel with and immediately adjacent to one of the side faces of the band knife 2. The lower end of this plate is tapered and curved forwardly and has rotatably mounted on it two anti-friction disks 35 and 36 while in order to permit of its being adjusted vertically, the main portion of said guard is provided with a number of vertical slots 37 for the reception of screws 38 which enter the plate 34. In order to maintain thev guard 33 inoperative position as well as to some extent resist its movement therefrom, I provide on the bearing structure 24 a pair of lugs 39 spaced apart for the reception of a spring-40 held to a lug 41 on said guard 33, as clearly7 shown in Fig. 2. As a result of this construction, the stitch guard is prevented fro-m turning on its pivot 32 under the action of gravity and is retained in the position shown ready to engage and protect the piece of work presented to the machine. At the same time any displacement of the guard from its normal position is resisted by the spring 40, which tends to return it to said position.

I preferably provide the saddle 1G with a pin 42 designed to extend through it parallel to the part 15 of the shaft and project beyond its face immediately adjacent the cutting edge of the knife 2, in order that said pin may enter the hollow of the insole and keep the shoe from too closely approaching the band knife. At the same time said pin will aid in feeding the shoe past the knife, as hereafter noted. If desired the pin may be threaded and mounted in a correspondingly threaded passage in the saddle so that the amount of its projection beyond the front of the latter may be varied at will. In order to4 guard the lower portion ,of the knife below the saddle, I provide a second trough-shaped guard plate 43, extending parallel with one face of the knife and across its cutting edge as well as across the rear edge thereof, and slot one side of said plate for the reception of a holding screw 44 whereby its position may' be adjusted at will.

Under operating conditions, if the pulley 6 be turned by power applied to the belt 7, the shaft 5 will be turned in its bearing and, owing to the eccentric mounting of the saddle, will impart to this a characteristic vibratory movement which I have found in practice materially facilitates the passage of the work over its surface, especially if, as in the present case, said saddle be resiliently supported on the springs 17. The brush 26 is also turned at a high speed by means of thebelt 28, so that if' a shoe be presented to the knife, with its surplus welt and stock projecting across the plane thereof, the vibratory movement of the saddle tends to feed the shoe toward the knife, especially if the pulley 6 be turned in the direction of the arrow, Fig. 2. In such case the antifriction disks 18 and 19, by reducing the friction between the saddle and the parts of the shoe engaging the same, render easy the passage of the shoe through the machine,

while in addition the stitch edge guard 33 tends to hold the work in the proper place and to limit the approach of the same to the knife. At the same time the guards 29 and prevent possible contact of t-he work or of the operators fingers with the cutting edge of the knife. T he dust, chips, and other surplus material cut off is at once removed by the rotary brush 26, which, owing to the direction in which it turns, also acts to facilitate the passage of the work through the machine, since it engages the strip of material cut off and may also have some action on the main portions of the shoe operated on. As the band knife wears by prolonged use and frequent sharpening, its cutting edge recedes, and under these conditions, the bearing and all of the apparatus supported thereby may be swung rearwardly to the necessary extent upon the bolt 4 as a pivot in order to follow up said knife, being rigidly held in any adjusted position by tightening said bolt. Since the various anti-friction disks mo-ve at a high speed it is necessary that they, as well as the saddle, be well supplied with lubricant and this is provided by occasional screwing up of the cap 12 which thus forces the grease in the boss 11 into the hollow of the shaft 5 and through the various passages leading to the engaging surfaces between the movable parts. At the same time if it is found advisable. the pin 42 may be employed either by itself or with one or more of the antifriction disks 18 and 19; it being adjusted so that under' operating conditions it will extend into the hollow of the insole and prevent the shoe from approaching too closely to the band knife.

in that form of my invention shown in Fig. 3, 1 have illustrated one relatively large disk 50 mounted on the saddle 16 on one side of the knife 2, and two smaller disks 51 so mounted as to lie in a plane on the Aopposite side of said knife. In Fig. 4, a series of disks 52 may be arranged so as to overlap each other and project above or beyond that edge of the saddle adjacent the knife 2 on one side thereof, while in Fig. 5 one large vdisk 53 is provided on one side of the band knife 2, a smaller disk 54 is mounted on t-he opposite side thereof, and a still smaller disk is mounted practically in the plane of the knife between said two first disks.

I claim 1. In an inseam trimmer the combination of a band knife; a work supporting structure; a brush operative in the angular space between said structure and said knife for removing material trimmed o by the knife; and means for driving the brush.

2. The combination in an inseam trimming machine of a knife; a work supporting structure; and a rotary brush mounted adjacent said structure and having its axis of rotation substantially parallel to the operative run of said knife for removing material cut off by the knife.

3. The combination in an inseam trimmer of a knife; a vibratory work supporting structure mounted adjacent thereto; means for actuating said structure; and a brush mounted to removematerial cut off by the knife both from said vibratory structure and fro-m the knife.

4. The combination in an inseam trimmer of a supporting structure having a bearing; a shaft mounted in the bearing and having an eccentric portion; means for driving the shaft; a work supporting member mounted on the eccentric portion of said shaft; means for resiliently supporting the member; and a cutter operative immediately adjacent said work supporting member.

5. The combination with a supporting structure of a band knife; a work supporting member abutting on the same; a spring interposed between said member and the supporting structure; a shaft having an eccentric portion engaging the work supporting member; and means for driving the shaft.

6. rlhe combination in an inseam trimmer of a supporting structure; aband knife; a work supporting member mounted immediately adjacent said knife and having a concave surface; a rotary brush having a convex portion and mounted to cooperate with said supporting member to remove material therefrom as it is cut off by the knife; and means for vibrating said member.

7. The combination in an inseam trimmer of a band knife; a work support therefor having a concave surface; a convex brush mounted adjacent the work supporting member; and means for rotating said brush.

8. The combination in an inseam trimmer of a band knife; a work supporting member therefor; with a rotary brush having a sub- `stantially cylindrical surface mounted to move adjacent the knife and having its end portion in position to remove cut olf material from the work supporting member.

9. The combination in an inseam trimmer of a supporting structure; a band knife; a work supporting member carried by the supporting structure; and a plurality of anti-friction disks mounted on said member in planes substantially parallel to the plane of the knife and on opposite sides thereof.

10. The combination in an inseam trimmer of a supporting structure; a band knife; a work supporting member carried by said structure adjacent the knife; and a downwardly extending stitch edge guard also eX- tending adjacent the knife, said guard being adjacent the work supporting member but on the opposite side of the knife.

11. The combination in an inseam trimmer of a supporting structure; a band knife having a substantially vertical run; an up- Wardly extending Work supporting structure on one side of said knife; and a resiliently mounted stitch edge guard projecting down- `Wardly to a point adjacent the Work supporting member but on the opposite side of said knife.

12. The combination in an inseam trimmer of a supporting structure; a band knife; a block pivotally mounted on said structure; a shaft carried by said block; a Work supporting member mounted on the shaft so as to be vibrated thereby adjacent the band knife; a brush also mounted on said block in position to remove material from said supporting member; and means for operating the brush, said block being adjustable on the supporting structure to vary the distance between the cutting edge of the knife and the parts carried by the block.

V13. The combination in an inseam trimmer of a band knife; a supporting structurehaving a Work supporting member and provided with a projecting arm; With a stitch edge guard pivotally mounted on said arm and having a portion extending adjacent the cutting edge of the knife near the Work supporting member.

14. The combination in an inseam trimmer of a supporting structure; a band knife having a run adjacent thereto; a stitch edge guard pivoted on the supporting structure and extending adjacent the Work support-ing member; with a spring normally maintaining said guard in a denite position.

15. The combination in an inseam trimmei' of a supporting structure; a Work sup*- porting member; a band knife having a run adjacent thereto; a stitch edge guard pivoted on the supporting structure and eX- tending adjacent the Work supporting member; a spring normally maintaining said guard in a definite position; and means for adjusting the position of the guard relatively to the knife.

16. The combination in an inseam trimmer of a supporting structure; a Work supporting member thereon; a band knife adjacent thereto; a stitch edge guard also eX- tending adjacent the knife; `With an antifriction disk on said guard to facilitate the passage of Work past? the same.

17. The combination in an inseam trimmer of a supporting structure having a post; a band knife; a block mounted on said post; a bolt attaching the block to the post so as to permit it to swing in a plane substantially parallel to the plane of the knife; a shaft mounted in said block and having an eccentric portion; and a Work supporting saddle mounted on said eccentric portion.

18. The combination in an inseam trimmer of a supporting structure having a post; a band knife; a block mounted on said post; a bolt attaching the block to the post so as to permit it to swing in a plane substantially parallel to the plane of the knife; a shaft mounted in said block and having an eccentric portion; a Work supportingsaddle mounted on said eccentric portion; and resilient means supporting said saddle.

19. The combination in an inseam trimmer of a support-ing structure having a post; a band knife; a block mounted on said post; a bolt attaching the block to the post so as to permit it to swing in a plane substantially parallel to the plane of the knife; a shaft mounted in .said block and having an eccentric portion; a Work supporting saddle mounted on said eccentric portion; resilient means supporting said saddle; and a stitch edge guard carried by the block in position to extend adjacent the saddle.

In testimony whereof, I have signed my name to this specification, in the presence of tWo subscribing Witnesses.

WILLIAM BOTTOMLEY KEIGHLEY.

' Witnesses:

HARRY A. FoULDs; WILLIAM E HUGHES.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

